Abstract
We propose a new approach that is an improvement on the conventional of a multi-bit information embedding algorithm for palette-based images. The proposed method embeds secret information by changing the pixel values for each of the \(2^{k-2}+1\) pixels. Hence, our scheme can embed more information compared to the conventional method. Furthermore, the developed algorithm does not drastically change the pixel values with large color differences between before and after the changes. Therefore, it reduces the degradation of the image quality. Our experimental results show that the proposed scheme is superior to the conventional method.
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This work was supported by JSPS KAKENHI Grant Number 26820138.
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Aryal, A., Motegi, K., Imaizumi, S., Aoki, N. (2015). Improvement of Multi-bit Information Embedding Algorithm for Palette-Based Images. In: Lopez, J., Mitchell, C. (eds) Information Security. ISC 2015. Lecture Notes in Computer Science(), vol 9290. Springer, Cham. https://doi.org/10.1007/978-3-319-23318-5_28
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DOI: https://doi.org/10.1007/978-3-319-23318-5_28
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